correct sizes

libi2pd/Destination.cpp

@@ -329,17 +329,17 @@ namespace client
 		switch (typeID)
 		{
 			case eI2NPData:
-				HandleDataMessage (buf + I2NP_HEADER_SIZE, GetI2NPMessageLength(buf, len));
+				HandleDataMessage (buf + I2NP_HEADER_SIZE, GetI2NPMessageLength(buf, len - I2NP_HEADER_SIZE));
 			break;
 			case eI2NPDeliveryStatus:
 				// we assume tunnel tests non-encrypted
 				HandleDeliveryStatusMessage (CreateI2NPMessage (buf, GetI2NPMessageLength (buf, len), from));
 			break;
 			case eI2NPDatabaseStore:
-				HandleDatabaseStoreMessage (buf + I2NP_HEADER_SIZE, GetI2NPMessageLength(buf, len));
+				HandleDatabaseStoreMessage (buf + I2NP_HEADER_SIZE, GetI2NPMessageLength(buf, len - I2NP_HEADER_SIZE));
 			break;
 			case eI2NPDatabaseSearchReply:
-				HandleDatabaseSearchReplyMessage (buf + I2NP_HEADER_SIZE, GetI2NPMessageLength(buf, len));
+				HandleDatabaseSearchReplyMessage (buf + I2NP_HEADER_SIZE, GetI2NPMessageLength(buf, len - I2NP_HEADER_SIZE));
 			break;
 			default:
 				i2p::HandleI2NPMessage (CreateI2NPMessage (buf, GetI2NPMessageLength (buf, len), from));